Large-span membrane structure roof

Abstract

The invention discloses a large-span membrane structure roof. The large-span membrane structure roof comprises air membranes and a fixing device, wherein the air membranes are connected to the top of a building, and the air membranes and the building form a closed space; the fixing device is arranged at the top of the building and used for fixing the bottoms of the edges of the air membranes to the building. The air membranes are connected to the building, and by the adoption of a membrane structure, the roof is suitable for a large-span building; the roof is low in weight, simple in structure, good in heat insulation effect, easy and convenient to construct, short in construction period, free of pollutant emission in the construction process and environmentally friendly; the space between the middle membrane and the inner membrane is filled with air, an inflated air bag is formed, and the sealed air which does not flow is used for insulating heat according to the principle similar to vacuum glass, so that the heat insulation effect of the space in the building is good, and all the air membranes will not get loose; a heat insulating layer is arranged, so that the heat insulation effect of the space in the building is enhanced; a steel cable net is arranged, so that the air membranes have strong compression resistance and tear resistance in a tensioning state.

Description

technical field [0001] The invention relates to the construction field, in particular to a large-span membrane structure roof. Background technique [0002] At present, in construction engineering, steel structures, grid structures, suspension cable mechanisms or thin shell structures are mostly used for small and medium-sized projects without pillars and spans, and rigid material rods are combined together as a fully enclosed supporting platform for the roof; for For large-scale construction projects without pillars, the roof needs a support platform, otherwise it is difficult to close the roof. The support platform for the roof closure of this large-span construction project uses rigid material rods that have been tested in existing small and medium-sized construction projects. It is used in design and construction. It is difficult to meet the technical requirements in the middle. As the span increases, the cross-section of the rigid member must also increase accordingly. ...

AI Technical Summary

Problems solved by technology

[0002] At present, in construction engineering, steel structures, grid structures, suspension cable mechanisms or thin shell structures are mostly used for small and medium-sized projects without pillars and spans, and rigid material rods are combined together as a fully enclosed supporting platform for the roof; for For large-scale construction projects without pillars, the roof needs a support platform, otherwise it is difficult to close the roof. The support platform for the roof closure of this long-span construction project uses rigid material rods that have been tested in existing small and medium-sized construction projects. It is used in design and construction. It is difficult to meet the technical requirements in the middle. As the span increases, the cross-section of the rigid member must also increase accordingly. In this way, the weight of the member itself will increase, and the overall structure formed is difficult to meet the requirements of compression resistance, bending resistance and deflection and other technical requirements, the construction is difficult and the construction period is long, and many consumables are used, which reduces the cost of the project

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